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1080A Aluminum vs. EN 1.4740 Stainless Steel

1080A aluminum belongs to the aluminum alloys classification, while EN 1.4740 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 1080A aluminum and the bottom bar is EN 1.4740 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
260
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 2.3 to 34
22
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 640
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 230
18
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 62
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.3
Embodied Energy, MJ/kg 160
32
Embodied Water, L/kg 1200
120

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Thermal Diffusivity, mm2/s 94
4.8

Alloy Composition

Aluminum (Al), % 99.8 to 100
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
16 to 19
Copper (Cu), % 0 to 0.030
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.15
75.4 to 82.7
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.060
0